ArticleAngewandte Chemie (International ed. in English)2022
Modular Nitrogen-Doped Concave Polycyclic Aromatic Hydrocarbons for High-Performance Organic Light-Emitting Diodes with Tunable Emission Mechanisms.
Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Redox Isomerism in Ethynyl-Bridged Triazatruxene-Diarylmethylium Dyads.The Journal of organic chemistry · 2025Article
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- Adaptive nitrogen-containing buckybowl: a versatile receptor for curved and planar aromatic molecules.Chemical science · 2025Article
- Strongly Polarized π-Extended 1,4-Dihydropyrrolo[3,2-The Journal of organic chemistry · 2024Article
- Cycl[2,2,4]azine-embedded non-alternant nanographenes containing fused antiaromatic azepine ring.Chemical science · 2024Article
- Photoinduced asymmetric charge trapping in a symmetric tetraazapyrene-fused bis(tetrathiafulvalene) conjugate.Chemical science · 2023Article
- Pure Polycyclic Aromatic Hydrocarbon Isomerides with Delayed Fluorescence and Anti-Kasha Emission: High-Efficiency Non-Doped Fluorescence OLEDs.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Article
- Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps.Chemical science · 2023Article
- DibenzannulatedChemical science · 2023Article
- Facile Functionalization of Ambipolar, Nitrogen-Doped PAHs toward Highly Efficient TADF OLED Emitters.ACS applied materials & interfaces · 2023Article
- Facile synthesis of 2-aza-9,10-diphenylanthracene and the effect of precise nitrogen atom incorporation on OLED emitters performance.Materials advances · 2023Article
- Effect of Substituents with the Different Electron-Donating Abilities on Optoelectronic Properties of Bipolar Thioxanthone Derivatives.ACS applied electronic materials · 2023Article
- Saddle-shaped aza-nanographene with multiple odd-membered rings.Chemical science · 2023Article
- Machine Learning-Based Quantitative Structure-Property Relationships for the Electronic Properties of Cyano Polycyclic Aromatic Hydrocarbons.ACS omega · 2023Article
- Article
- Highly emissive planarizedRSC advances · 2022Article
- Modular Nitrogen-Doped Concave Polycyclic Aromatic Hydrocarbons for High-Performance Organic Light-Emitting Diodes with Tunable Emission Mechanisms.Angewandte Chemie (International ed. in English) · 2022Article
- Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[Beilstein journal of organic chemistry · 2022Article
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Authors and funding
6 authors.
Funding
Abstract
Although bowl-shaped N-pyrrolic polycyclic aromatic hydrocarbons (PAHs) can achieve excellent electron-donating ability, their application for optoelectronics is hampered by typically low photoluminescence quantum yields (PLQYs). To address this issue, we report the synthesis and characterization of a series of curved and fully conjugated nitrogen-doped PAHs. Through structural modifications to the electron-accepting moiety, we are able to switch the mechanism of luminescence between thermally activated delayed fluorescence (TADF) and room-temperature phosphorescence (RTP), and to tune the overall PLQY in the range from 9 % to 86 %. As a proof of concept, we constructed solid-state organic light-emitting diode (OLED) devices, which has not been explored to date in the context of concave N-doped systems being TADF/RTP emitters. The best-performing dye, possessing a peripheral trifluoromethyl group adjacent to the phenazine acceptor, exhibits yellow to orange emission with a maximum external quantum efficiency (EQE) of 12 %, which is the highest EQE in a curved D-A embedded N-PAH to date.
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